Dynamic symmetry; the Greek vase
A 1920 Yale University Press study by Jay Hambidge, published in New Haven and New York, that explains his dynamic symmetry method through geometric construction diagrams of Greek vases for students of design. The pictures are line drawings of amphora and vase profiles overlaid with dashed diagonals, rectangles and proportional grids, showing how root rectangles and intersecting lines fix a vessel's outline; a designer could borrow the grid method for laying out proportions in a composition.
